Heater for automobiles



J. J. lSUNDAY HEATER FOR AUTOMOBILES Filed Feb` 9, 192e March 25, 1930.

Patented Mar. 25, A1930 UNITED STATES PATENT OFFICE 'Juas J. SUNDAY,Y orDETROIT, IIICIIIGAN, AssIGNon To JAMES w. xELcH.' or l l DETROIT,MICHIGAN f HEATER FOB' AUTOMOBILES Application filed February 9, 1926.Serial No. 87,024.

f This invention relates generally to heaters .for automobiles andconsists of certain novel features of construction, .combinations andarrangements of parts as will be more fully described and particularlypointed out in the appended claims.

In the accompanying drawing: v a Figure 1 is a fragmentary sideelevation ofl an automobile with a heater embodying my invention appliedthereto. Figure 2 is an enlarged fragmentary elevation of the heaterwith certain parts in section.

A Figure 3 is adetail elevation of one of the partitions. Y l

' Figure 4 isa top plan view of the air inlet duct. i

Figure 5 is a front elevation of the air inr, let duct. v 2o Referringnow-to the drawing, 1 is aheater embodying my invention havingconcentrically Aarranged inner and outer shells 2 and 3 respectively. Asshown, the inner shell 2 is'divided by spaced transversely extendingapertured disks or partitions 4 into a series of chambers 5 in which theexhaust gases from the engine are adapted to expand, while the outershell 3 is closed at its ends and is providedadjacent to -said ends,preferably at diametrically opposite sides 'of the inner shell withinlet and outletl openings 6 and ''leiY spectively or air. To provide`an efficient construction, the partitions 4 are provlded with thelateral peripheral iianges 8 that fit inner-wall of theshell 2, whilethe closed ends of the outer shell 3 are provided with the laterallyextendingflanges 9 that lit snugly around and are-rigidly secured to theouter f wall of the shell 2. Preferably the ianges 8 of the end walls 4and the flanges 9 of the shell' 3 terminate flush with the ends of thejshell 2, hence these parts may be securedtogether along their 4outeredges by a slngle welding operation. h

In order that the heater may be applied to exhaust conduits of varioussizes, the end walls 4 of the inner shell are preferably'pro-` videdwith openings 10 of suiicient area to receive the largest exhaustconduits now in snugly Aagainst and are rigidly secured, to the standardconduit section 11 and are dis-- charged from the rear end of the shellinto a standard conduit section 12. Thus, with this arrangement,suitable adapters having openings of various sizes may be employed forholdin the conduit sections rigidly in assemble position.l As shown, theadapter 13 preferably comprises the cooperating plates 14 and 15 and theresilient gaskets 16. To facilitate assembly, these plates have`openings therein for receiving suitable bolts 17, while the gaskets 16are clam ed between the plates 14 and 15 by means o bolts. Inasmuch asthese boltsV extend outwardly through the end walls 4 it is apparentthat the adapter plates 13 may-be easily and quickly applied to orremoved from the heater. In this 'connection it will be noted that thebolts 17 are prevented from falling or being pushed inside theheaterwhen the adaptf' er plates are applied by means of the rearwardlyconverging walls of a perforated coneI into a suitable conduit 2O whichleads from the outlet-opening 7 to a suitable register 20 in the floorof the vehicle body. As shown,

the duct/19 is provided at its forward endwith an outwardly flaringport-ion y21 and is these securing` provided intermediate its ends withthe up-- wardly extending longitudinally curved top wall 22. Locatedwithin this duct, preferably below the curved top wall 22, is a baille23 that preferably extends upwardly from the bottom wall of the duct toa point in substantial alignment with the upper wall 24 at the rear endYof the duct. Thus with this construction water, dust and foreign matterof any kind entering the duct through its ared forward end will beeffectively prevented by the battle 23 from passing into the heatershell 3. In this connection it will be noted that. the bottom wall 25inclines downwardly from the baflie 23 to the forward end of the duct,hence iiuids stopped by the bai-lle 23 will be discharged from the ductby draining down the inclined bottom 25. If desired, a small port oropening (not shown) may be provided in the bottom Wall 25 adjacent tothe baille to permit the escape of such foreign matter.

To facilitate the attachment of the heater to an autotmobile, the airconduit 20 is preferably swiveled in the outlet opening 7 in the outershell, hence this conduit may be readily adjusted to a convenientposition for attachment to the register in the floor of the automobilebody.

Thus, from the foregoing description, it

will be apparent that the apertures in the cone 18 and partitions 4 willpermit the eX- haust gases to flow freely through the shell 2, hencethese parts will serve effectively to deaden the sound of the engineexhaust without causing objectionable back pressure on the engine. Itwill also be apparent that the tubular shell 2 will receive the heatthrown off by the gases flowing through the chambers 5 and thereforewill provide a large heating surface for the air within the outer shell3. Thus, this construction serves efficiently as a combined heater andmuflier.

While itis believed that from the foregoing JAMES J. SUNDAY.

description, the nature and advantage of my invention will be readilyapparent, I desire to have it understood that I do not limit myself towhat is herein shown and described and that such changes may be resortedto when desired as fall within the scope of what is claimed.

What I claim as my invention is:

1. A heater for automobiles including a chamber for exhaust gases havingan opening therein, an adapter for exhaust conduits having an opening inalignment with the opening in said chamber. means for detachablysecuring said adapter to said chamber including headed elementsprojecting outwardly from said chamber, and a delector for said gasesupon the inside of said chamber forming a receptacle surrounding theheaded elements for preventing said securing means from falling or beingpushed inside the chamber when the adapter is being adjusted.

2. A heater for automobiles including an inner shell constituting amuffler casing provided With end walls having longitudinally extendingperipheralflanges secured to the inner wall of said shell andterminating flush therewith, an outer shell surrounding said inner shelland spaced therefrom to form an Yair chamber and provided with lateralinturned lianges contacting with the oilter wall

